How do I change the App store automatic ID
When I go to log in to the Apple Store, the app automatically gives me my wife's log in ID. Even when I use her password, I cannot download the Safari updates that I need for my computer.
How do I alter that automatic ID to make it mine? I have checked the system preferences and it shows my own ID for the Apple Store but this does not come up when I activate the app.
Thank you in anticipation of your help.
iMac 27″, OS X 10.10